How to Change the Coolant in a 2010 GAS GAS TXT PRO 250
Shop parts for your ride now!Regular maintenance, including changing the coolant, is crucial for keeping your 2010 GAS GAS TXT PRO 250 performing strong in trials conditions. Follow this step-by-step guide to keep your cooling system fresh and responsive–and note several tips specific to your model.
Important Notes Before You Begin
- Make sure the engine is completely cool before removing the radiator cap to avoid burns and scalding.
- Use coolant designed for lightweight alloy engines, as this is recommended for your TXT PRO 250.
Tools & Supplies Needed
- Metric Allen/hex wrenches
- Flathead screwdriver
- Appropriate drain pan
- High-quality premixed coolant for aluminum engines (avoid silicate-based coolants)
- Clean rags or paper towels
Step-by-Step Coolant Change Procedure
-
Remove the Fuel Tank for Access:
Unbolt and remove the front section of the fuel tank to access the radiator cap and top of the cooling system. Make sure the fuel tap is closed and disconnect the fuel line carefully.* -
Locate the Radiator and Drain Point:
The radiator cap is situated under the area cleared by the fuel tank. Look for the lowest hose connection or a dedicated drain bolt at the bottom of the water pump cover or lower radiator area.* -
Drain the Old Coolant:
Position your drain pan underneath. Carefully loosen the lower hose clamp or the drain bolt (if equipped) and allow old coolant to fully drain. -
Flush if Needed (Optional):
If the coolant is very dirty, you may pour a small amount of distilled water through to flush, then drain again. -
Reinstall Drain Bolt or Reattach Hose:
Tighten everything securely and wipe up any spills. -
Fill with New Coolant:
Slowly pour in your approved coolant up to the neck of the radiator to avoid air bubbles. Filling slowly helps reduce trapped air. -
Bleed Air from System:
Tilt the bike side-to-side gently to help any trapped bubbles rise. If your model has a bleed bolt at the thermostat or water pump, loosen it until only coolant escapes, then retighten. -
Check and Top Off:
Reinstall the radiator cap. Start the bike, let it idle, and periodically check for leaks. Once it cools down, top off coolant if necessary. -
Reinstall the Fuel Tank:
Reconnect the tank, secure fasteners, and re-attach the fuel line.
TXT PRO 250 Owner Tips
- The cooling system is compact – precise filling to the neck is important to avoid air pockets.
- Check routing of hoses when reinstalling to prevent kinks, which affect coolant flow.
- Check for leaks at the water pump areathis is a known spot for potential aging seal failure as the bike gets older.
- Inspect your radiator fan (if equipped) and electrical connections when the tank is off for preventative maintenance.
Keeping your coolant fresh ensures the TXT PRO 250's high compression, liquid-cooled engine remains protected during intense trials riding and variable environmental conditions.
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Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.